Fuel Pump Gaskets

Stupid question here...75 Dart, /6, slight oil leak at the fuel pump. Need to replace the fuel pump anyway because I have no idea when the last time this engine was freshened up.

Got the new fuel pump and it contains 2 gaskets. Yup, 2!

Am I supposed to use both gaskets for this or is the manufacturer expecting me to screw up the first one?

Thanks.

Screw up the first one.:D